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doc: Note that dm2 = sm1 + dm1 is not possible (see bug #632).

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Jitse Niesen 2014-04-07 13:49:51 +01:00
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commit 1046ea7a89
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doc/TutorialSparse.dox
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@ -253,12 +253,15 @@ SparseMatrix<double> A, B;
B = SparseMatrix<double>(A.transpose()) + A;
\endcode
Binary coefficient wise operators can also mix sparse and dense expressions:
Some binary coefficient-wise operators can also mix sparse and dense expressions:
\code
sm2 = sm1.cwiseProduct(dm1);
dm2 = sm1 + dm1;
dm1 += sm1;
\endcode
However, it is not yet possible to add a sparse and a dense matrix as in <tt>dm2 = sm1 + dm1</tt>.
Please write this as the equivalent <tt>dm2 = dm1; dm2 += sm1</tt> (we plan to lift this restriction
in the next release of %Eigen).
%Sparse expressions also support transposition:
\code